On Sat, 7 Jan 2012 14:54:30 +0100 Antonio Tirri <antonio.ti...@gmail.com> wrote:
> On 7 January 2012 14:34, Prof Brian Ripley <rip...@stats.ox.ac.uk> > wrote: > > > > > And what did your statistics advisor say? The problem is your > > understanding of the words 'sampling period'. > > > > I don't have a statistics advisor, my computer networks tutor said to > me "try to forecast time series values with ARIMA models". > And i saw R is a powerful tool for this target. > The only information I have about this time series ( > http://www.grid.unina.it/Traffic/Traces/Magnets.php) is that data are > sampled every 0.05 seconds, so i'm trying to understand the meaning > of the words "sampling period" since you said my suppositions are not > true. > Given that your sampling interval is 0.05 seconds, you are acquiring more than 1.7 million data points in 24 hours. A weeks worth of data are going to be on the order of 12 million data points. Are you attempting and hourly, daily or weekly forecast? JWD ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
